It makes sense: according to Reuters' Jim Wasik, there's a limited supply of farmland, and it could become even more scarce thanks to development and a growing global population.

And land prices are creeping up: the price of agricultural real estate has increased 40% since 2004.

Of course, it's one thing to invest in agri-business; it's a completely different thing to buy land and turn a profit from it. Wasik recommends several agribusiness-focused ETFs for investors.

But if you're thinking of going all in and buying up your own hunk of ranchland, you might want to consider these--the most insanely pricey American ranches that are currently on the market, according to the Land Report.

We know, some are more luxury getaway than functioning cattle ranch. But from Hawaii to Texas, they're expansive, and super expensive, and pretty fun to ogle.